Single-game tickets for Tennessee Titans home games go on sale this morning. Most people intend to buy them online. Not David Cline. He's one of those people who camps out overnight every year to secure his spot. "I'll do this when I'm in my sixties," he says. This year, Cline was the only overnight camper outside LP… »7/12/13 10:27am 7/12/13 10:27am